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Re: [Qemu-devel] [PATCH v2 00/38] Delay destruction of memory regions to

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v2 00/38] Delay destruction of memory regions to instance_finalize
Date: Tue, 17 Sep 2013 16:41:45 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8

Il 17/09/2013 14:47, Michael S. Tsirkin ha scritto:
> Ergo, to make sure a referenced MR does not get
> destroyed, we must make sure only finalize
> calls memory_region_destroy.
> So I think this patchset should do exactly that,
> not try to move out more stuff to finalize.

Yes, this is the part of the problem that applies to all devices.

Some devices may have timers or other dynamically-allocated data that
may be used between exit and finalize.  The same applies to capabilities
such as MSI and MSI-X.  All this must also be moved to finalize, but
this can be done in separate patches.

I'll separate the series as follows:

- memory_region_destroy

- unregister_savevm

- other dynamically allocated data

- del_vm_change_state_handler


- SHPC, AER and other PCI/bridge stuff


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